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JP3684170 |
To provide an inexpensive and low cost rotary disconector for high- voltage power transmission which can maintain the state after the operation of a rotary contact of the disconector without using a special lock means, and can reduce in ...
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JP3683089 |
To provide a switch gear reduced in size and production cost, and generating no explosion in an occurrence of an arc short circuit accident therein. A fixed electrode 3 for a main circuit is provided at one end of the inside of one vacuu...
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JP2005142017 |
To improve assembly structure in order to enhance the reliability of "open" and "close" detection action in a switch mechanism for blade opening and closing detection installed in a disconnector.This is a disconnector for electric power ...
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JP2005142107 |
To provide a power circuit breaking device, having a power switch and a fitting detection switch which can be made compact.In the lever fitting type power circuit breaking device 1A, power terminals 9, 35 forming a power switch are arran...
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JP2005141915 |
To provide an operation mechanism of a three-position switch capable of reducing the total number of input shafts and output shafts, and of reducing man-hours of machining and adjustment.A rotation shaft 16 functions as a first input sha...
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JP3678600 |
To construct a breaker device small and light and facilitate the drawout/set-in operations of a movable electrode. Stationary electrodes 14 to form a couple are fixed to a male housing 13. A movable electrode 30 is accommodated in a fema...
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JP2005100779 |
To realize a low cost by reducing arc, improving electric contact reliability, and reducing the number of parts.A circuit breaker 1 is provided with a power supply side bus bar 10 provided with a first contact 11, a load side bus bar 20 ...
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JP3664899 |
To provide a vacuum switchgear of simple configuration with a high reliability capable of suppressing consumption of SF6 gas and establishing good harmony with the environment. A vacuum valve 20 includes an insulation vessel in which an ...
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JP3660222 |
To provide a switch and its insulating barrier capable of preventing relative movement between insulating barriers provided for each phase. A switch is designed to insulate between phases and the ground by passing and supporting bushings...
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JP3660158 |
To provide a switch capable of improving insulation performance between lines having the same phase. In this switch 11 wherein bushings 13, 14 facing to each other are penetratingly supported on both side walls of a body case 12 for ever...
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JP3660155 |
To provide a switch with a built-in fuse capable of being constructed small. A body case 11 has two walls 1a and 11b, and a power supply side bushing 12 is penetratively supported by one side wall 11a while a load side bushing 31 and acc...
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JP3660272 |
To provide a switch capable of avoiding generation of an arc at an unspecified position on the live part in a body case in an internal short- circuit accident. Power-side arc electrodes 73 are respectively formed at an inside end part of...
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JP3660251 |
To provide a fixed electrode for a switch that eliminates, with a small space, an excess turning part due to play of an opening/closing mechanism part to an introduction position of a fixed contact of a movable contact blade, and can con...
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JP3660159 |
To provide a switch capable of improving assembly work efficiency. This switch is provided with bushings 13, 14 penetratingly supported on both side walls of a body case 12 wherein arrester elements 27a, 27b are stored, a fixed electrode...
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JP3660224 |
To provide a switch capable of avoiding the generation of an arc in an unspecified portion within a body case in an internal short circuit accident and preventing the breakage of the body case. A plurality of projections (earth electrode...
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JP3657202 |
To make attaching/detaching of a fuse impossible in a state that a short circuit plug is inserted. In a state that the short circuit plug 30 is inserted into an electrode 14, a guided part 40 of the short circuit plug 30 comes in contact...
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JP3657160 |
To provide a breaker which can miniaturized, is necessarily turned into discontinuous state on exchanging of a fuse and has good workability. Since a breaker collects a pair of stationary electrodes 20, 21 in a space and a direction by a...
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JP2005071910 |
To provide a contact structure of a disconnector capable of always applying predetermined contact pressure between contacts of the disconnector.In a finger contact 10, pins 40 are mounted by penetrating fingers 15 and a support body 11, ...
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JP2005069964 |
To provide the failure diagnosing technology of a power operating apparatus for a disconnector which conveniently diagnoses a failure without stopping the facility of the disconnector during operation and sufficiently obtains an effect f...
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JP2005019214 |
To reduce the size of a switch by reducing a bending load and an impact load generated at a contact parting time at a contact pressure part for impressing pressure at the contact portion of the switch.In the switch, the action of an oper...
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JP2005019174 |
To provide a high-reliability switch driving device having a simple structure and capable of reducing the number of times of replacements of components.This switch driving device is so structured that the orbital surface of an operation ...
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JP2004362889 |
To provide a switching device having a simple operation mechanism switching a breaking part and a disconnecting part in good order.The switching device is composed of a breaking part 1a composed of a vacuum valve 4 having one pair of fir...
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JP3628551 |
To reduce loads applied to a movable locking part and to easily conduct strength design according to the loads. In an automatic drive 10 for inputting and opening a movable electrode 5 to a fixed electrode 4 by a drive power of a solenoi...
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JP2004356074 |
To provide a fixing structure of a terminal cover support member capable of improving efficiency of a work for attaching the support member.An engagement structure 41 for fixing a terminal cover support member 14 to a terminal portion 32...
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JP2004342453 |
To reduce partial wear of contacts at a contact section of a circuit breaker in which a plurality of contacts are arranged in parallel.The circuit breaker comprises at least three contact pairs of a fixed and movable contact that are arr...
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JP2004335337 |
To provide a switch making a movable contact come into contact with and separated from a fixed contact, which is made small in size by reducing the height of the fixed contact.The movable contact 13 is freely rotatably supported on a con...
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JP2004311253 |
To secure stable withstand voltage performance by improving the mounting property of a zero phase detecting capacitor to an outdoor switch.The insulating frame of the main body case of the outdoor switch has an insulating holding part ac...
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JP3609704 |
To provide a switch which can prevent a moving-electrode from turning by a large amount beyond a prescribed release position. This switch 11 has bushings 21 and 22 relative in each phase piercing through and supported by both sidewalls o...
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JP3609646 |
To provide a multiple-circuit switch prohibiting the other maintenance opening/closing contacts from turning on when one maintenance opening/closing contact of multiple maintenance opening/closing contacts is turned on. Interlock mechani...
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JP3609703 |
To provide an insulating barrier for a switch, the inside of which can be verified seen, after being installed in the body case. This insulating barrier 41 for the switch 11 is an insulating barrier, where bushings 21 and 22 relative in ...
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JP2004296213 |
To provide an outdoor type switch having stable withstand voltage performance, wherein a power transformer, a zero-phase detecting capacitor, and apparatuses of an arrester other than switch components such as a movable contact, stationa...
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JP2004288444 |
To improve workability in assembling a breaker device.Fixed electrodes 13 are located in fitting-recesses 15 of a cover housing 12, respectively. The respective fixed electrodes 13 fit to dummy electrodes 40B by dummy plug 40 being fitte...
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JP3599519 |
To facilitate maintenance and inspection with the reduced number of operation turns by a method wherein a grounding conductor is pressurized or depressurized to compress or relieve a grounding spring attached to the grounding conductor a...
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JP2004253338 |
To provide a contactor for conductor connection for electrically connecting two main circuit conductors which are provided in a confronting state in a switch or the like, that is superior in working performance and low in cost.This conta...
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JP3589061 |
To provide a vacuum switchgear easy to be handled, having a simplified operation mechanism, by permitting automatic execution of a series of operations of breaking and disconnection. In a vacuum valve 1 where a moving electrode 2 is move...
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JP2004236459 |
To provide a downsizable gas-insulated switchgear by improving the insulation performance as well as suppressing the use of global warming gas such as SF6, etc.For a movable contact 9, voltage is applied between poles when it parts from ...
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JP3586081 |
To provide a switch operation mechanism capable of differentiating the stroke between a closing position and an opening position from the stroke between the opening position and a grounding position with a simple structure. This switch o...
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JP2004227955 |
To provide a connecting tool which is not easily deformed even when the switch is broken.The connecting tool 10 is formed in a mortar shape provided with a bottom 10B on one end of a barrel 10A. An operating stick 1 is inserted inside th...
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JP3583004 |
To provide a breaker device allowing prevention of plastic deformation of a curved spring. A movable electrode 12 of a breaker device is provided with an insulating base 13, a handle 14 tiltably mounted to the base 13 and a curved spring...
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JP3583033 |
To provide a breaker device capable of being miniaturized and stably holding fixed electrodes into a breaker main body. This breaker device is miniaturized by collecting a pair of fixed electrodes 20, 21 at one part, while arranging them...
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JP2004222483 |
To improve economical efficiency that is attained by downsizing a gas insulated switchgear entirely, by miniaturizing a disconnector, a grounding switch, or a conductor connection part applied to the gas insulated switchgear.This gas ins...
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JP2004206991 |
To provide a switch capable of simplifying check work with a simple operation mechanism.This switch comprises: a worm gear part 39 composed by engaging a screw-like gear 44 rotated by a handle with a disc-like gear 45; a slider crank mec...
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JP2004190072 |
To provide a contact for an outdoor electric apparatus such as a breaker coated with a chemical reducing and removing a silver chloride coating film in high efficiency operation without requiring maintenance and inspection.In the contact...
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JP2004187434 |
To obtain a simplified disconnector simplified in structures of an elevation mechanism and an external operation mechanism, reduced in cost and also reduced in work load in opening/closing operation.A fixing-side vessel 2 is arranged wit...
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JP2004185966 |
To provide a switch structure capable of suppressing an arc generated time if any as short as possible at a connection operation or a release operation.Housings 4, 11 capable of insertion-coupling with each other are provided with termin...
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JP2004178956 |
To provide a terminal for a high-pressure blade switch and the high pressure blade switch provided with a rotation-side terminal and a fixed-side terminal fulfilling functions of respective terminals, and capable of reducing the cost.The...
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JP2004179023 |
To provide a power switching device without requiring to form the length of a movable conductor more than the necessary dimension.This power switching device is provided with a fixation side fixed conductor 2, a fixation side electrifyin...
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JP2004171987 |
To obtain a power supply breaker in which a constitution for connecting and breaking the power supply is simplified, and which has a space saving effect and a simple operation.This power supply breaker has a charge and discharge circuit ...
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JP2004171988 |
To provide a power supply breaker in which an increase in thickness in the length direction of a power supply is suppressed, and in which safety at maintenance is improved.A lower case 40 is loaded with an electric circuit to connect a b...
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JP2004152650 |
To provide a power supply switching device capable of making a safe switching operation.A supply-side terminal 3 connecting a supply-side wiring and a demand-side terminal 5 connecting a demand-side wiring are packaged inside a switching...
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